Research Turns Another 'Fact' into Myth

Above is a confocal image of new neurons in the dentate gyrus of the macaque monkey. Collaborators at the Salk Institute for Biological Studies in La Jolla, Calif., and the Sahlgrenska University Hospital in Goteborg, Sweden, under the direction of Salk professor Fred H. Gage, recently reported newly formed neurons in the hippocampi of adult humans.1,2 The announcement that neurogenesis-- through which new neurons live and die in the brain well into the later years of adulthood--has been disco

Written byA. J. S. Rayl
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Above is a confocal image of new neurons in the dentate gyrus of the macaque monkey.
Collaborators at the Salk Institute for Biological Studies in La Jolla, Calif., and the Sahlgrenska University Hospital in Goteborg, Sweden, under the direction of Salk professor Fred H. Gage, recently reported newly formed neurons in the hippocampi of adult humans.1,2 The announcement that neurogenesis-- through which new neurons live and die in the brain well into the later years of adulthood--has been discovered in humans sent ripples through the exhibit hall and the press room at the Society for Neuroscience Conference in Los Angeles last November. The evidence for neurogenesis bodes far-reaching implications, not the least of which are new therapies for the treatment of brain damage caused by stroke, Alzheimer's, Parkinson's, or other traumas.

The announcement arrived in the wake of reports from Princeton University some six months before that neurogenesis occurs in ...

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